Electric heat-regulator



(No Model.)

R. L. GUION.

ELBGTRIG HEAT REGULATOR.

im M49 Patented Dec. 28, 1886.

NA PETERS. PhoiLhugraphar, Wnshingnn, D. C.

UNITED' STATES PATENT OFFICE.

RICHARD L. GUIN, OF ELMIRA, 'NEW YORK.

ELECTRIC H EAT-REGULATQR.

SPECIFICATION forming part of Letters Patent No. 355,164, dated December28, 1886.

Application filed April '1, 1886. Serial No. 198,075. (No model.) l

To all whom i/ may concern.-

Be it known that I, RICHARD L. GUIoN, of

Elmira, in the county of Ghemung, in the State Y ofNew York, haveinvented new and useful Improvernents in Automatic Heat-Regulators, ofwhich the following, taken in connection with the accompanying drawings,is a full, clear, and exact description. y

The purpose of this invention is to automatically regulate thetemperature oftheinterior of buildings, or' of incubators orotherystruct ures or apparatuses; and the invention consists,

inthe novel combination, in an electric circuit, of a clock-work havinga cam-wheel, a switch for opening and closing the circuit operatedbysaid cam-wheel, electro-magnets, an armature adapted to engage andstop the clockwork, and a latch actuated by the cam-wheel and adapted toretain the armature out of engagement with the clock-work, all ashereinafter more fully described, and specifically set forth in theclaims. ln the annexed drawings, Figure l is aface View of my inventionwith the front plate of the frame or case of t-he-cloclr-work removed;and Fig. 2 is a vertical transverse section on line x, Fig. 1, thespring and main gear through which said line passes being omitted toobviate confusion in t-he view presented.

The vsame letters of referenceindcate the same or corresponding parts. A

A represents a metallic frame or clock-case, on which is mounted thefollowing clockwork: A main driving-wheel, l, receives its motive powerfrom a coiled spring, 2, conriected with the shaft s fof said wheel andwith the frame A. This wheel l meshes in a pinion, 3, on a shaft, P, asrepresented by dotted lines in Fig. 1. Said shaft P is extended acrossthe frame and projects at opposite sides thereof, and has connectedtoits I ends pulleys or cranks C C, which, by means in common with agear-wheel, 6, on a shaft, s',

pivoted on the frame. The wheel 6 engages av pinion, 7, von anothershaft, As, pivoted to the frame, and a gear-wheel, '8, on the lattershaft meshes in a pinion, 9,y secured to the pivoted shaft s3, to whichthe fly-wheel h is at-- tached. The described train of gearing, however,may be varied according to the speed.

of, and the other set consists of two pins, n a, l

projecting from the opposite side.

Horizontally across the upper part of the Wheel o, at the side fromwhich the pins a a project, is a latch,j, pivoted at one end to aysuitable support on the frame A, and having its free end formed withsteps or shoulders u a at different distances from the end, for thepurpose hereinafter' explained. The intermediate portion of the latch isprovided at its under side with a downward-projecting cam, j', which isencountered by the pins n n during the rotation of the wheel o, and thuslifts th free end of the latch.

a a represent' electromagnets, and d is the armature, which is pivoted,as at y, at or near the end adjacent to the wheel o, and has rigidlyattached to said end an upright arm, d, upon the upper end of which thefree end of the latch rests by one of the steps u. The armature issupported clear of the magnets by a spring, f, and when so supported thearmature engages-the fly-wheel 7L, so as to stop the rotation thereof,and consequently stop also the movement of the entire clock-work. At thesame time the arm d is lowered and swung toward the wheel o to allow itto engage the inner shoulder, a', of the latch j, which shoulder merelyserves as a stopto limit the movement of the armature toward thefiy-wheel, as represented by full lines in'Fig. l-of the drawings. Vhenthe electric circuit is completed through the magnets a a, the armaturedis'drawn down and caused to release the liy-wheel IL, thus al- 'lowingthe clock-work to run. In the said movement of the armature the arm dthereof' is swung to bring the upper end under the outer shoulder, a, ofthe latch, and as the pin n of the wheel o nieves from under the cam jof the latch, the latter drops and causes its roo outer shoulder, u, tocatch on the upper end of the arm d', and .thereby retain the armature dout ofengagement with-.the fly-wheel h. Ahalf-revolution of the wheel o`brings the succeeding pin n under the cam j', and thereby raises thelatch and releases the arm d'. The

' electric circuit through the magnets having in the meantime beenbroken, as hereinafter described, allows the spring f to draw thearmature into engagement with the {1y-wheel h, and thereby stop themotion of the clock-work; hence it will 4be observed that the shaft P,on which the wheel o and the cranks C C are mounted, receives only ahalf-revolution at a time. netsa a is controlled by the followinginstrumentalities:

On the frame A is pivoted a lever or switch, e, one end of which isbifnrcated, and has the two arms thereof` straddling the shaft P and pinm of the cam-wheel 0,' so that during the rotation of said wheel the pinm thereof imparts an oscillatory movement to the lever c. In the path ofthe oscillation of the opposite end of the lever are two bindingposts,attached to the frame A and insulated `therefrom and arranged in suchrelative positions as to come in contact with thesaid end of the levereat the extremities of its oscillations. The pin mis so arranged inrelation to the pins n n as to cause the former to carry the lower endof the lever ein contact with the binding-post i while one of the pins nmoves from under the cam j of the latch j.

T denotes a thermostat, which is to be 1ocated in the apartment in whichthe heat is to be automatically controlled. Said thermostat may be ofanysuitable style. For the purpose of illustration I have selected athermostat of the class described in another application for end adaptedto deflect laterally under the inv luence of heat. Said bar is composedpartly of metal and partly of rubber, and its support is also composedof metal, and on said support,rat opposite sides of the free end of thethermostatic bar B, are two electric contact-points, e e, which areinsulated from the metallic support of the bar B. A wire, s, is extendedfrom the contact-point e to the binding-post fi', and another wire, s',is extended from the contact-point e to the binding-post 4'", heretoforereferred to, and a third wire, s", is extended from the metallic supportof the thermostat to one pole of the battery D. A wire, s, leads fromthe other pole of the battery to a binding-post, m; wires 8 and tconnect the battery with the metallic frame- A, the current passing fromthe frame through wire t, magnets a, wire 8", and wire 8 to the battery.

The operation of my invention is as follows: As the heatin the apartmentcontaining the thermostat T rises above the desired temperature, thethermostatic bar B deects 4and The electric circuit through the magfcomes in contact with the contact-point e", and thereby closes theelectric circuit through the wire s -and binding-post i, and thencethrough the switch-lever e and lnetal frame A to the magnets a a, andthence through the wire 8 to the binding post m', and from thence bywire s' to the battery D. The circuit, being thus completed, causes themagnets a a to draw down the armature d, and thereby releases thefly-wheel h and allows the clock-work to run. The engagementof the arm dof the armature with `the outer shoulder, u, retains the armature in itssaid position until the wheel o has made a half-revolution, when one ofthe pins n thereof lifts the latch and releases the arm d. Theswitch-lever e, having in the meantime been removed from the bindingposti by the pin m of the wheel 0and the circuit thus broken, allows thearmature to be drawnup by the spring f and thrown into engagement ywiththe ilywheel h, to stop the motion of the clock-work. During thismovement the cranks C C on the shaft P are turned so as to both closethe valve or damper, which admits the draft to the re yof the heatingapparatus, andopen a checkdamper, admitting air to the smoke-pipe of thesame,the reby cooling the apartment heated by said apparatus. Thischange of temperature allows the thermostat T to resume its normalcondition, and thus break the 'electric cir cuit. When thetemperaturefalls below a certain degree, the thermostatic bar B is drawnover against the contact-point e and again closes the electric circuit,the clock-work being thereby again set in motion to impart a partialrevolution to the shaft P, and thereby turn the aforesaid valves, so asto increase the draft through the lire of the heating apparatus. y

It is obvious that my invention can be arranged to also open and closethe valves of steam-heating apparatus, so as to automatically controlthe flow of steam to the radiators located in the apartments to beheated.

Having described my invention,what I claim as new, and desire to secureby Letters Patent,

1. In an electric circuit, a clock-work having a cam-wheel,a switch foropening and c losing the circuit operated by said cam-wheel,electro-magnets, an armature adapted to engage and stop theclock-work,and a latch actuated by the cam-wheel and adapted to retainthe armature out of engagement with the clockwork, as set forth. y

2. Inan electric circuit, a clock-work having acam-whecl with two setsof cams,aswitch` lever adapted to open and close the circuit and IOO lIO

operated by one set of said cams, a latch op` erated by the other set ofcams, electro-magnets, and an armature held normally in engagement withthe clock-work to stop the motion thereof, and adapted to engage thelatch a clock-work, electro-magnets, the armature,

ment with the clock-work, a cam-wheel having two sets of cams, a latchactuated by one set of said cams and adapted to retain the armature outof engagement with the clock-work, an oscillatory switch-lever actuatedby the other set of cams, and binding-posts in the path of said lever atthe extremities of the oscillations thereof, substantially as describedand shown.

4. ln an electriccircuit, the combination of a thermostat havingelectric contact-points brought in contact under the influence of heat,a clock-work having a cam-wheel with two sets of cams, an oscillatoryswitch-leveractuated by one set of cams, binding-posts in the path ofsaid lever, electro-magnets, a pivotedarmature, a spring for drawing thearmature into engagement with the clock-work to stop 2o the motionthereof', and a latch actuated by the other set of cams and adapted toretain the armature out of engagement withlthe clockwork, and cranks orpulleys on the shaft of the cam-wheel, substantially as described and 25 shown.

In testimony whereof -I have hereunto signed f my name and affixed myseal,in the presence of two attesting Witnesses, at Elmira, in thecounty of Qhcmung, in the State of New York, 3o this 9th day of March,1886.

RICHARD L. Guion.. [L s] Y/'itness'esz FERD. D. POTTER, THEO. G. SMITH.

